10 Surprising Sets of Celebrities You Had No Idea Were Related

Despite the many high-profile celebrity families out there (the Hemsworths, anyone?), there are some familial Hollywood relationships that are less well-known. Here are 10 sets of celebs whose just-as-famous relatives may blow your mind. (We can only imagine what these family reunions are like.)

Jenny McCarthy and Melissa McCarthy

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Yes, blonde bombshell Jenny McCarthy and the incredibly hilarious Melissa McCarthy share the same last name, but did you know that the two actresses are actually first cousins? It's true. Their dads are brothers. Jenny even came to her cousin's defense after critics slammed ELLE Magazine for "covering up" Melissa on the front cover. "Guess what? She looks gorgeous," Jenny shot back at nay-sayers while on her talk show, 'The View.' "Second, McCarthy girls, no one's gonna make us wear anything we don't want to wear." You tell 'em, cuz.

Peyton and Eli Manning and Taryn Manning

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It's common knowledge that the Manning brothers come from a famous, football-playing family (dad Archie was also an NFL quarterback and older brother Cooper was a star football player in college), but the quarterback brothers also have another famous relative: actress Taryn Manning. Taryn, who is most known for her roles in the 2003 Britney Spears movie 'Crossroads,' and as Pennsatucky on 'Orange is the New Black,' is Peyton and Eli's second cousin. Her late father, Bill, was first cousins with their dad, Archie.

Spencer and Abigail Breslin

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Spencer Breslin and Abigail Breslin were both child stars in their own right, but who knew the two were actually brother and sister? Spencer, the older of the two, was known for his roles in 'The Kid,' 'The Cat in the Hat,' and two of 'The Santa Clause' films, while younger sister Abigail broke out in 'Little Miss Sunshine' and has moved on to such films as 'August: Osage County.' The pair also have another brother, Ryan, who is currently starring in 'Newsies' on Broadway.

Justin Bieber and Ryan Gosling/Avril Lavigne/Celine Dion

Oh, Canada! It's almost too good to be true, but Justin Bieber is actually distant cousins with fellow Canadian superstars Ryan Gosling, Avril Lavigne and Celine Dion. (Still breathing?) Genealogists at Ancestry.com discovered the connection while tracing Bieber's family origins and revealed the news to the public in October 2012. The Biebs and Gosling are 11th cousins once removed, and he and Lavigne are 12th cousins. All three of them are all related through a French couple who settled in Quebec in the early 1600s. Bieber and Dion are 10th cousins three times removed, and are related through a different French couple who also came to Quebec in the 1600s. We can only imagine the family reunion.

Jason Sudeikis and George Wendt

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They're both successful comedic actors and starred on long-running comedy shows (Sudeikis on 'SNL' and Wendt on 'Cheers'), but we were still shocked when we found out that the beer-guzzling "Norm!" is actually Jason Sudeikis' uncle (his mother's brother). "The advice he gave me, and I say this jokingly, is 'Get on one of the best sitcoms of all time and then ride it out,'" the 'We're The Millers' star has said about the guidance that his uncle offered him. Oh, Norm.

Kirk and Candace Cameron

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Kirk Cameron and little sis Candace Cameron had late '80s/early '90s sitcoms on lock, with the older Cameron starring as heartthrob Mike Seaver on 'Growing Pains,' while Candace warmed our hearts as DJ Tanner on 'Full House.' At the height of his fame, Kirk even guest-starred on an episode of 'Full House' as DJ's cool older cousin. Kirk and Candace are married with children and are devout Christians.

Charlie Sheen and Emilio Estevez

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This one might be the most well-known on the list, but some are still shocked upon finding out that actors Charlie Sheen and Emilio Estevez are brothers. (Dad is Martin Sheen.) While older brother Emilio (most famous for his roles in 'The Breakfast Club' and 'The Mighty Ducks') chose to keep his given name, Charlie (born Carlos Estevez) followed in his father's footsteps and adopted the stage name Charlie Sheen. Both brothers bare a strong resemblance to their father, and even starred in several films together in the late '80s and early '90s, including 'Wisdom, 'Young Guns,' 'Men at Work' and 'Rated X.'

Reba McEntire and Kelly Clarkson

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Reba McEntire and Kelly Clarkson share much more than just country music superstar status -- the two are now officially related! After marrying husband Brandon Blackstock in 2013, Kelly is now Reba's stepdaughter-in-law. (Reba has been married to Blackstock's father since 1989.) That's one country Christmas we'd love to be invited to.

Snoop Dogg and Brandy Norwood

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Talent must run in the family! Snoop Dogg (er, Snoop Lion) is first cousins with 'Have You Ever' singer Brandy. Both artists burst onto the R&B/rap scene in the '90s, but kept their familial relationship on the down-low for a while. "We never really told the world because we weren’t trippin’ off of that, but that’s my family," Snoop Dogg told MTV in 2006.